Update(Decenber 2025):

Added files that bake actions and split them into separate animations(GoldFishBlenderSizeAnimBake.zip, Blender4.5.1).

This makes NLA editing easier.

https://eizouasobi.blogspot.com/2024/04/efficient-use-of-blender-assets.html

3D model and animations of Goldfish.

https://www.youtube.com/watch?v=rgR_VlMv_m0 

https://www.youtube.com/watch?v=Qr5EUQAvBkQ 

There are files that contains two types of scale.

GoldfishBlenderSize.blend uses blender unit system, GoldfishUE4Size.blend uses scale for UE4.

Each file contains two types of models:

GoldfishMiddlePoly

3396 Verts

3398 Faces

GoldfishLowPoly

777 Verts

920 Faces

Animation names are listed in the documentation. 

Note: To import UE4, I need 3ds Max.

How to import to the game engine